Radiator



April 20, 1926. v 1,581,386

A. CLARK RADIATOR Filed Feb, 28, 192s 2 Sheets-Shea. 1

Fig-i fiflan Clark A rii 2.0, 1926. 1,581,386

- A. CITARK- I 1 RADIATOR Filed Feb. 28, 1923 2 Sheets-Sheet 2 Patented Apr. 20, 1926.

UNITED STATES ALLAN CLARK, OF SEATTLE, XV'ASHI ITt'i'lOTN'.v

I RADIATOR.

Application filed February 28,1923. Serial No. 621,772.

To all whom it may concern: I Be it known that I, ALLAN CLARn, a c1t1- zen of the United States of America, and

resident of the city of Seattle, in the county of King and State of Washington, have invented certain new and useful Improvements in Radiators, of which the following is a specification.

My invention relates to radiators and particularly to an improved radiator, which may be moved about from place to place in a room or from one room to another, carrying its own steam generating unit peculiarly designed for use with it, so that heat may be generated quickly and distributed where desired.

It is an object of my invention to provide a steam generator or boilerwhich is particularly designed and particularly applicable for use in conjunctio-n'with such a portable or mobile radiator. I

My invention comprises those novel parts and combinations thereof which are shown in the accompanying drawings, described in the specification and particularly definedby the claims terminating the same.

In the accompanying drawings my invention is shown in the form which is'now. preferred by' me, although changes may be made therein, within the scope of the claims.

Figure 1 is a general elevation of a radiator, boiler and support therefor, embodying my invention. 7

Figure 2 is a longitudinal section through the boiler forming a part of my invention.

Figure 3 is a transverse section through the boiler and the support therefor,'on the line 33 of Figure 2.

It is often desirable to provide steamheat in a single room or in certain rooms of a house without the necessity of firing a large boiler of "capacity sufiicient to heat the entire house, and further, to position the radiators at such points as will most satisfactorily heat the room. It is also desirable that these radiators be portable or mobile readily, and that they be as inconspicuous as possible, and pleasing in appearance. They should also bereadily controllable as to the degree of heat, and so designed that steam is quickly generated and available in the radiator columns. To these ends I have produced my invention, a preferred embodiment of which is shown in the drawings.

In the form shown herein the radiator 1 is of a stock size and design, and it is my intention to provide supports which are adapted for use with stock radiators. The feet 10 of the radiator rest upon a suitable support 2, which is in reality a mobile carriage, being mountedupon casters 2O. Preferably this box-like carriage 2 is open at one end, and this opening may be closed'by a door 21.

' Wholly or partly within the carriage 2 I secure a steam boiler. Thisis best shown in Figures 2 and 3. Hereintheflboileris shown'as comprising an outer shell 3 having a rounded bottom 30 and a steam dome 34 above the water line. The boiler shell 3 -is secured in some suitable manner within per portion of the boiler shell. Fromthis steam dome extends one or more, preferably two, steam outlet conduits 35. These conduits are of any'suitable shape and design,

and extend upward to connections at the ends of'the radiator 1, these being the usual connections provided inradiators for the steam pipes." By means of these or other suitable connections the radiator 1 is secured rigidly upon the carriage 2,.its feet 10 resting upon the upper surface 21 of the carriage. I

lVithin the boiler shell 3 I secure a tube 36 which is open at-at least one end, this center of the rounded bottom 30. By this means I provide a water jacket entirely surrounding the tube 36 but of greater thlnness at the bottom than at the sides. By this means the cooler water, which will sink to the bottom, being spread out more thinly than the warmer water at the sides, will be more readily heated, vand in this way the efficiency of the boiler and the rapidity of its action is increased.

The heatin element 4 may be of any suitable desi uch heating elements are common in t e electrical art, and as the particular design forms no part of the present invention, I shall not describe it in greater detail. The electrical connections 41 leading therefrom are connected to a variable resistance switch 42 placed upon the out-' side ofthe carriage 2 to permit ready control of the heat.

It is my intention to provide but a small amount of Water in the boiler, thus reducing the time required to generate steam, and making for lightness of the radiator. I have found that it is desirable to maintain the heating element at all times surrounded with Water, to the end that it Will not be come overheated. I therefore provide a filling opening 39 Which is closed by a plug 37 opening into the interior of the boiler shell 3. This filling opening is located above the upper level of the tube-'36 and at about the bottom of the steam dome 34. If the escape valve 11 of the radiator is closed (providing such a. valve is employed) the space above the filling opening and plug 37 Will be dead space, and no more Water will enter the boiler shell than that Which-lies below the level ofthe plug 87-. By this means I control the maximum amount of Water to be placed in the boiler and insure that the Water level Will not be so high above the tube 36 that the tube will be covered to too great a depth. In order to observe the Water level in use, I may provide the water gage glass 38.0utside of the casing 2, where it is readily visible.

' It Will-benoted that a device of the character described is simple, compact, and of a not displeasing design. The controls are simple and yet effective, and convenient to operate. The radiator may beplaced at any desired point and by reason of the small amount of water in the boiler and because of the position of the heating element in the boiler, the radiator will begin to heat Within a short time after turning on the current in the heating element 4:. If it is"necessary to remove or replace the heating element, this may be done quickly by opening the door 21, disconnecting the leads 41 from the heating element, and Withdrawing the latter from the tube 36, a new element being similarly replaced. The boiler itself is rigidly secured to the carriage 2 and through this boiler the radiator 1 is rigidly secured to the carriage, permitting the entire device to be moved about at Will.

l/Vhat I claim as my invention is:

1. A. steam boiler for individual steam radiators comprising a rounded bottom shell having a tube extending therethrough near its bottom, said tube being of slightly less diameter than the diameter of the shells bottom, and being eceentrically positioned relative thereto, with its center lower than the center of the shells bottom, and a heating element removably positioned in said tu e.

2; A steam boiler for individual steam radiators comprising a rounded bottom shell having a. tube extending therethrough near its bottom, said tube being of slightly less diameter than the diameter of the shells bottom, and being ecce-ntriea-lly positioned relative thereto, with its center lower than the center of the shells bottom, a steam dome formed by inclining inwardly and upwardly the ends of said shell, a filling opening 10- cated above said tube and belovv'the steam ALLAN CLARK. 

